Improved spring-bbd



nitml ,gioire @anni LVERUS HULL, OF

TURING COMPANY, 0F BOSTON, MASSACHUSETTS.

Letters Patent No. 101,267, dated March 29, 1870.

IMPROVE!) SPRINGMDEID.

The Schedule referred to in these Letters Patent and making par?. of thename To all persons to whom these presents may come:

Be 'it known that I, Livnnns HULL, of' Charlestown, of the county' ofSuffolk and State of Massachusetts, have invented a new and usefulImprovement in Spring-Beds or Bed-Bonndatons; and do hereby declare thesame to be fully described in the following specification, andrepresented in the accomallel to each other, at u. suitable distanceapart, and.

tcnoned into two parallel side bars B B, such bars con stituting aframe.

Each of the bars A A is formed with a series of abut-ments, aa, extendedfrom its inner side, there being between each abutment and that next toit a wedgeshaped recess, b.

'Each abutment on its top isy channeled or grooved Alengthwise acrosssuch, to receive the middle or hinge part c'of one ot' the compensationsprings, O. Such part oi' the spring is to be placed in such groove 'andkept in place by a cap plate, D, extending over the part c, and boltedto the bar A.

Each ofthe springs consists of a wire bent twice at a right anglefnear`its middle, viz,I at d d, as shown in Figure 6, after' which eachportion or leg d' e is bent or'turned, at or near its middle, around a.cylinder, so lestohave one or more helical coils introduced into,'sishown at f, in the drawings. y

-Next the two ends or legs of the spring or parts g 'are to be.inserted, and fixed in asaddle or block, h,

provided with a pivot or stud, "L, extended upward from it.

A series ci' the springs (l is applied to each of the bars A A, inmarmer as above described, each spring being extended beyond the ends`of its supporting abutment, in order that the legs of the spring mayhave proper vertical play, without interruption from the abutment.

A series of slats, D D, is supported by the several springs or theirsaddleblocls and the studs thereof, each slat being made to extend overone spring of each of the barsA A, and to receive the stud of suchspring intobne of two holes, K K, made in the slat, the whole being asrepresented in the drawings.

Each spring, while being depressed by a. weight on the slat, willoperate to cause the saddle-block to descend nearly, if not entirely ina vertical line, there being a double action on each leg of the spring,by which the spring is rendered very etiicient.

I claim- The combination and arrangement of thepivotcd or pivotalsaddle-block, h, with a spring, C, made as described.

Also, the combination and arrangement of the two groovcd abutments, a,a, and the cap-plates D D thereof', ,with the bars A A and the springs CC, oo nstrnctcd and combined with pivotal saddlefbl'ocks h h, andapplied to each slat D, as set forth.

Also, the improved bed-foundation, as composed of the springs C, madeand arranged as described, the separate pivotal saddle-blocks h, 'theslats D, and the frame-bars A A. B B, provided with the grooved abi-1tvments and cap-plates to the transverse bars, as s et forth.

Witnesses:

y R. H. EDDY,

J. R. Snow.

LIVERUS HULL.

